Trough system for pipe-welding apparatus.



No; 844,340. PATIENT-ED FEB.19, 1907.

I 0. FELL. THOUGH SYSTEM FOR PIPE WELDING APPARATUS.

PPLIU TIQH FILED {TUNE 7,1906.

3 SHEETS-SHEfiT 1.

No. 844,340. PATENTEDIFEB. 19, 1907.

0. FELL. TROUGH SYSTEM FOR PIPE WELDING APPARATUS.

APPLIOATION FILED JUNE 7,1906. r

3 SHEETS-SHEETZ.

WiTNESSES INVENTOR No. 844,340. PATENTEDFBB. 19', 1997.

c. FELL.

THOUGH SYSTEM FOR PIPE WELDING APPARATUS.

APPLIGATION FILED JUNE 7,1906.

- 3 SHEETS-SHEET 3.

m- & I

I lNVENTOR 41410, 9L0? 1 CHARLES FELL, OF

mos.

ELYRIA, GHIQASSIGNOR T NATIONAL TUBE COMPANY,

' "VOEPITTSBURG, 'PENNs' LvA LA, ACORPOR A'TION or NEW JERSEY.

'r-RoUeH SYSTEM FOR'PIPE-WELDING APPARATUS.

Specification of Letters Patent.

Patented .Feb. 19, 1907.

App1ioationfiledJmie7,1906. Serial No. 320,638.

To atl w hbm, it may concern):

.Be it known that.I, CHARLEs FELL, of Elyria, Lorain county, Ohio, have invented .a new and useful Trough System for Pipe- Weldin Apparatus, of. which the following'is Iafull, c ear, and exact description, reference being'had to the accompanying drawings,

formingpart of this specification, in which Figures 1 and 2 are successive broken side elevations, partly in'section', which together 'show the essential parts of the system; and

1 discharge of v trough.

3'a1'1d .4 are cross-sections showing the P discharge mechanism at different positions.-

' My invention" relates to the drawing of the mandrelfrom welded pipe. and alsothe the pipe from the receiving Thejobjectof the invention is to provide for automatically discharging the pipe as the welding-bar is withdrawn and also to providesimple and efficient mechanism for Withdrawing thebar.

A fur her object of vide for a duplicate trough system involving the above features which may be used either ona-single or multiple trough. arrangement.

In the drawings, 2 and 3 representupper and lower welding-rolls, of which there are two sets in the apparatus, shown located side by side at the corresponding openings'of the heating-furnace. v

4 is the welding ball carried on the end of the Welding-bar 5, which extends hack within the trough 6. There are two of-these sto are the supplemental trou hs 15, having rol ers 16, over which the man el bar assesas it is withdrawn by the pinch-rolls. n the backward movement of the welding-bar it strikee-the snubbing -post 17, which stops its further movement, and before reaching this troughs 6 and 7, located side by. side andin line with the two s'etsof-welding-rolls,.each trough having 'a series of separated carrying-- rollers 8', over which the -p1p passes during welding.

In the rear of each trough is a of pinchrolls 9 and 10, in-the rear of which is'a back,-

stop 11, adjustably mounted on a cross-head or an port 12, carried upon the double plunger' o the single-acting vertical-cylinders 13 and-14.

In the rear of the pinch-rolls and backpost it'ac'ts upon the lever 18, which is nor? mallv in itspathf A flexible connection 19,

havinga weight 20, normally holds this lever 'in its lifted position; The lever is pivoted at '21 and acts upon the inlet and exhaust .valves 22 and 23 in the pipes 24 and 25, lead ing to cylinders 26 and 27, one for each welding-trough. The plunger 28 of cylinder 26 has link 29, connecting it to rock-arm 30,

secured to shaft 31. ,Theshaft 31 is 'pro-.

vided with curved ejector-levers32, having the fixed nose portions 33 and the pivoted 65.

link portions 34, which rest on the small rollers 35 of the trough '7. The movement,

of thelinks 34 in one direction is limited by fingers 36, contacting with pins 37 on the levers 32. v r

' The rock-arm 38, connected by link 39 to the plunger ofcylinder 27, 'actuates arockshaft 40, having ordinary ejector-levers 41'.

In the operation of the device after a pipe is welded and passes intd trough 6 the-operator actuates the cylinders 13 and 14 to lower I the back-stop 11, whereupon the pinch-rolls theinvention is to pro-- will draw out the Welding-bar until its rear end strikes the snubbing-post. As theb'ar,

passes the lever '18 it will shift this lever, so

act to carry the Welding-bar backwardly to- I normal position; As soon as the welding-bar asses forwardly the lever 18 is drawn back hy. the counterweight, thus causing the supply and opening the exhaust of'the air-valve,

which-will cause the plunger 28 to lower, thus drawing back the ejector-levers of trough 6 into the position of Fi 3. The welding-bar is then carried forwar far enough to permit the raising of the back-stop 11, which will rob hold 'the welding-bar for the nextcpipe to pass through the welding rolls.

that'in trough 6, so that a single operator froma pulpit can control the entire trough system, includi g the pinch-rolls, troughiajector mechanism, back-stops, &c.

The operation in trough 7 is the same as- The advantages offmy invention result from the reduced amount of'labornecessary, l sai'delemen'tbeing' arranged'to start the ejecsince-less operators areneeded to-handle the apparatus.

. 'flhesystemnfaybe usedwith eitherasingle set'of rolls or a number of sets of Weldin rolls, the strigping mechanismrcr thewelding-bar ma e varied, as well .as the trougheje'ctcrme ha -em and many other changes may be made Without departing from my 'in I O .V'ention.

41.311 welding ap aratus, NtrQ g havingpipe-ejector'mec anism, stripping mechanismarranged to w'ithdrawthe welding bar 'from alpipe inthe trough, and a deviceloated imposition to be actuated'by the movemerit of the welding bar and arranged to 's tart the -ejector mechanism into movement at apredetermined point in the travel of the 2 0 welding-bar substantially as described.

' 2filntwelding apparatus, a trough having side ejector mechanism, a inch-roll device arranged to strip the wel ing-bar from the.pipe, and a devicelocated in position'to be ac'tuated'by the movement of the welding bar, and arranged to start the ejector mechanism into movement at a predetermined point in'the travel of'theWelding-bar; substantiallyas described.

3o 3. 'In pipe-welding apparatus, a trough, side ejector mechanism therefor, stripping mechanism for Withdrawing the welding-bar, a movable back stop under the control of the operator,-a'nd an element inthe rear of-said 3 5 back-stop and in the path of the Welding bar,

tor mechanisminto movement-;substantially 'as'described. j v

4. In *pipeevelding ap aratus, =--a trou 11, side ejector mechanism therefor, a-mot'or $01 the 'ejector mechanism, astripping device, a movable back-stop under the control of the operatorgend an element in the'vpathmftthe mandrel-bar and in the rear of the back-stop,

said device controllingthe valve for the ejector-motor; substantiallyvas described. 5. ln-weldingapparatus, a trough, jettor mechanism; therefor, reversible pinch'-rolls,ra movablebackstop, and adever ihthe path of "the Weldin bar r and inthe rear of these I j back stop, sai' lever havin'g'con'nections'controlling the movement of the troughr'cjetor mechanism; substantially as described.

6'. In Welding app aratus, a trough or receiver, ejector mechanism therefor, a pair of 5 5 pinch-r0 ls arranged to Withdraw the Welding-bar, ambvable'back-s'top under'the con trol of the'operator, another back-stop .L-to stop the stripping movement of the "bar, a

back-stop, and "a =motor controlled by "the movement of the'latte'r' lever and having"connections arranged to actuate, the trough e'ecto'r substantially as described.

' In testimony whereof l have'heru'ritoset 6 5 my hand; V

, CHARLEb FEEL; Witnesses J. ELLEN, H. "MOUNTAIN.

lever in the (path ofythebar near' therear 

